Theroux Family History
Theroux Name Meaning
French (Théroux):: (southern): habitational name from (Le) Thérou the name of several places in the southwestern part of France. Alternatively of the same origin as 2 below. This surname is no longer found in southern France. (mainly Sarthe): probably from an ancient Germanic personal name based on the element tur ‘giant’. (Nord): metathesized form of Tréhou itself a variant of Tréhout a topographic name composed of the preposition tré ‘beyond on the other side’ and Middle Dutch hout ‘wood copse’.
Source: Dictionary of American Family Names 2nd edition, 2022